Interconnecting Cisco Network Devices P1

Interconnecting Cisco Network Devices P1

Since the introduction of the personal computer in the early 1970s, businesses have found
more uses and applications for technology in the workplace. With the introduction of localarea
networks, file sharing, and print sharing in the 1980s, it became obvious that
distributed computing was no longer a passing fad.

iii
Feedback Information
At Cisco Press, our goal is to create in-depth technical books of the highest quality and value. Each book is crafted
with care and precision, undergoing rigorous development that involves the unique expertise of members from the
professional technical community.
Readers’ feedback is a natural continuation of this process. If you have any comments regarding how we could
improve the quality of this book, or otherwise alter it to better suit your needs, you can contact us through email at
feedback@ciscopress.com. Please make sure to include the book title and ISBN in your message.
We greatly appreciate your assistance.
Corporate and Government Sales
The publisher offers excellent discounts on this book when ordered in quantity for bulk purchases or special sales,
which may include electronic versions and/or custom covers and content particular to your business, training goals,
marketing focus, and branding interests. For more information, please contact:
U.S. Corporate and Government Sales 1-800-382-3419 corpsales@pearsontechgroup.com
For sales outside the United States, please contact:
International Sales international@pearsoned.com
Trademark Acknowledgments
All terms mentioned in this book that are known to be trademarks or service marks have been appropriately capitalized.
Cisco Press or Cisco Systems, Inc., cannot attest to the accuracy of this information. Use of a term in this book should
not be regarded as affecting the validity of any trademark or service mark.
Publisher Paul Boger
Associate Publisher Dave Dusthimer
Cisco Representative Anthony Wolfenden
Cisco Press Program Manager Jeff Brady
Executive Editor Brett Bartow
Managing Editor Patrick Kanouse
Development Editor Ginny Bess Munroe
Copy Editor Kevin Kent and Written Elegance, Inc.
Technical Editors Matthew C. Brussel
Tami Day-Orsatti
Kevin Wallace
Editorial Assistant Vanessa Evans
Designer Louisa Adair
Composition ICC Macmillan Inc.
Indexer Tim Wright
Proofreader Water Crest Publishing

iv
About the Author
Steve McQuerry, CCIE No. 6108, is a consulting systems engineer with Cisco Systems
focused on data center architecture. Steve works with enterprise customers in the
midwestern United States to help them plan their data center architectures. Steve has been
an active member of the internetworking community since 1991 and has held multiple
certiﬁcations from Novell, Microsoft, and Cisco. Prior to joining Cisco, Steve worked as an
independent contractor with Global Knowledge, where he taught and developed
coursework around Cisco technologies and certiﬁcations.

v
About the Technical Reviewers
Matthew C. Brussel is currently leading accelerated certiﬁcation training courses for
Training Camps that specialize in MCSE: Security 2003, MCDST XP, A+, Net+, Security+,
CCNA, CCDA, and others. After studying IT, economics, and accounting in college,
Matthew has been an IT consultant, pre-sales engineer, and IT trainer in various capacities
for over 20 years. He has worked as a traditional trainer and as an accelerated technical
certiﬁcation boot camp trainer for well over the last 10 years. Matthew also contributes to
custom content and exam prep study guides and participates in various technical writing
and technical editing projects. Previously, Matthew worked as an IT consultant for over
10 years in Portsmouth, RI; Stamford, CT; Greenwich, CT; and New York City. Now
traveling to Training Camp sites all across America, he currently resides in central Florida.
He has over 70 technical certiﬁcations and exams to his credit, including Microsoft MCT,
MCSE 2003 with Security and Messaging, CCNA, CCDA, A+, Network+, I-Net+,
Security+, and CTT+ (Written). Matthew can be reached at MattBrussel@gmail.com.
Tami Day-Orsatti, CCSI, CCDP, CCNP, CISSP, ECI, EMCPA, MCT, MCSE: 2000/2003
Security, is an IT networking, security, and data storage instructor for T2 IT Training. She
is responsible for the delivery of authorized Cisco, (ISC)2, EMC, and Microsoft classes.
She has over 23 years in the IT industry working with many different types of organizations
(private business, city and federal government, and DoD), providing project management
and senior-level network and security technical skills in the design and implementation of
complex computing environments. She maintains active memberships in local and national
organizations such as (ISC)2, ISSA, and SANS.
Kevin Wallace, CCIE No. 7945, is a certiﬁed Cisco instructor and a full-time instructor of
Cisco courses. With 18 years of Cisco networking experience, Kevin has been a network
design specialist for The Walt Disney World Resort and a network manager for Eastern
Kentucky University. Kevin holds a bachelor’s of science degree in electrical engineering
from the University of Kentucky. Kevin is also a CCVP, CCSP, CCNP, and CCDP, and he
holds multiple Cisco IP communication and security specializations. Additionally, Kevin
has authored several books for Cisco Press, including CCNP Video Mentor, Voice over IP
First-Step, and Cisco Voice over IP, Second Edition.

vi
Dedication
This work is dedicated to my family. Becky, as the years go by, I love you more. Thank you
for your support and understanding. Katie, your work ethic has always amazed me. As you
prepare to move into the next phase of your life, remember your goals and keep working
hard and you can achieve anything. Logan, you have never believed there was anything you
couldn’t do. Keep that drive and spirit and there will be no limit to what you can
accomplish. Cameron, you have a keen sense of curiosity that reminds me of myself as a
child. Use that thirst for understanding and learning, and you will be successful in all your
endeavors.

vii
Acknowledgments
There are a great number of people that go into publishing a work like this, and I would like
to take this space to thank everyone who was involved with this project.
Thanks to the ICND course developers. Most of this book is the product of their hard work.
Thanks to the technical editors, Tami Day-Orsatti, Kevin Wallace, and Matt Brussel, for
looking over this work and helping maintain its technical integrity.
Thanks to all the real publishing professionals at Cisco Press. This is a group of people that
I have had the pleasure of working with since 1998, and it has been a joy and honor. Thanks
to Brett Bartow for allowing me the opportunity to write for Cisco Press once again and to
Chris Cleveland for gently reminding me how to write again after a three-year break. It's
deﬁantly not as easy as riding a bike. Thanks to Ginny Bess Munroe for keeping the work
ﬂowing and dealing with my bad jokes. Also to Kevin Kent and John Edwards (Written
Elegance), you are the best in the industry.
Thanks to my manager at Cisco, Darrin Thomason, for trusting me to keep all my other
projects managed while working on this project in my spare time. (Wait, do we have spare
time at Cisco?)
Thanks to my customers, colleagues, and former students. Your questions, comments, and
challenges have helped me to continue to learn and helped teach me how to pass that
information to others.
Thanks to my family, for their patience and understanding during this project and all my
projects.
Most importantly, I would like to thank God, for giving me the skills, talents, and
opportunity to work in such a challenging and exciting profession.